qmake adds '-g' flag to compile under redhat 6 -

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i have bash script compiles program or without symbols based on flag. first makes makefile 1 of these commands

$qmake -makefile config-=release config+=debug $basedir/project/myproj.pro $qmake -makefile config-=debug config+=release $basedir/project/myproj.pro

this works fine under fedora, under redhat 6 notice makefile has -g parameter added compiler option. (regarless of of above commands issue). under rh6 latter line produces:

cflags        = -pipe -o2 -g -pipe -wall -wp,-d_fortify_source=2 -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -o2 -wall -w -d_reentrant -fpie $(defines)

while under fedora 20 produces:

cflags        = -pipe -o2 -wall -w -d_reentrant -fpie $(defines)

can explain why qmake produces different makefiles under 2 versions of linux, , how fix this? (so latter command not add -g parameter compiler)


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